The source for it isn't public. There appear to be efforts to take the emulator the DSTwo's was based on and use that for something new... but don't get your hopes up, might turn out to just be a PoC.Sooo...(Not meaning to take away from the achievement here...) what are the chances of some one doing the same thing for the GBA Emu? Don't think, that I'm being ungrateful, just asking. (Also Mega Man X2 is working great)